317503139 has 8 divisors (see below), whose sum is σ = 328905360. Its totient is φ = 306275200.

The previous prime is 317503111. The next prime is 317503159. The reversal of 317503139 is 931305713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 317503139 - 2¹² = 317499043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317503159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39857 + ... + 47154.

It is an arithmetic number, because the mean of its divisors is an integer number (41113170).

Almost surely, 2^317503139 is an apocalyptic number.

317503139 is a deficient number, since it is larger than the sum of its proper divisors (11402221).

317503139 is an equidigital number, since it uses as much as digits as its factorization.

317503139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87141.

The product of its (nonzero) digits is 8505, while the sum is 32.

The square root of 317503139 is about 17818.6177634518. The cubic root of 317503139 is about 682.2067431048.

The spelling of 317503139 in words is "three hundred seventeen million, five hundred three thousand, one hundred thirty-nine".